CN-122000099-A - Water tank device and containment assembly

CN122000099ACN 122000099 ACN122000099 ACN 122000099ACN-122000099-A

Abstract

The application provides a water tank device and a containment assembly, wherein the water tank device is applied to a containment of a nuclear power station, the containment is of a prestressed concrete structure, the containment is of a single-layer containment, a buttress is arranged on the outer surface of the containment, and the water tank device comprises at least two water tanks, at least one end of each water tank in the at least two water tanks is abutted against the buttress, the at least two water tanks are connected through a connecting water pipe, and the connecting water pipe is arranged opposite to the buttress. Thus, according to the stress characteristics of the concrete structure water tank and the prestressed containment structure, the problem that the double-layer containment is optimized to be a single-layer containment and then the concrete structure water tank is hung outside is solved.

Inventors

WANG JUNFENG
WANG XIAOXI
HU ZHONG
ZHANG YINGLING
BAI YUNXIU
LI ZHIQIANG
LI YUCHEN
XUE WEI
LI XIAOHONG

Assignees

华龙国际核电技术有限公司

Dates

Publication Date: 20260508
Application Date: 20241104

Claims (10)

1. The water tank device is characterized by being applied to a containment vessel of a nuclear power station, wherein the containment vessel is of a prestressed concrete structure, the containment vessel is of a single-layer containment vessel, a buttress is arranged on the outer surface of the containment vessel, and the water tank device comprises at least two water tanks, at least one end of each water tank in the at least two water tanks is abutted to the buttress, the at least two water tanks are connected through a connecting water pipe, and the connecting water pipe is arranged opposite to the buttress.
2. The tank assembly of claim 1, wherein the buttress includes a first buttress and a second buttress, the connecting water pipe includes a first water pipe and a second water pipe, the at least two tanks include a first tank and a second tank, a first end of the first tank is in abutment with the first surface of the first buttress, a second end of the first tank is in abutment with the first surface of the second buttress, a first end of the second tank is in abutment with the second surface of the first buttress, a second end of the second tank is in abutment with the second surface of the second buttress, the first end of the first tank is in communication with the first end of the second tank via the first water pipe, and the second end of the first tank is in communication with the second end of the second tank via the second water pipe.
3. The water tank assembly of claim 2 wherein a first end of said first water tank communicates with said first water line through a first control valve, a first end of said second water tank communicates with said first water line through a second control valve, a second end of said first water tank communicates with said second water line through a third control valve, and a second end of said second water tank communicates with said second water line through a fourth control valve.
4. The water tank apparatus of claim 2, wherein the first water tank and the second water tank each include at least three accommodating cavities arranged in a stacked manner, and the accommodating cavities included in the first water tank are in one-to-one correspondence communication with the accommodating cavities included in the second water tank.
5. The water tank apparatus of claim 4, wherein the first water tank includes a housing cavity including a first housing cavity, a second housing cavity, and a third housing cavity that are stacked in sequence, and the second water tank includes a housing cavity including a fourth housing cavity, a fifth housing cavity, and a sixth housing cavity that are stacked in sequence; The first end of the first accommodating cavity is communicated with the first end of the fourth accommodating cavity through the first water pipe, and the second end of the first accommodating cavity is communicated with the second end of the fourth accommodating cavity through the second water pipe; The second accommodating cavity and the fifth accommodating cavity are internally provided with a first pipeline, the third accommodating cavity and the sixth accommodating cavity are internally provided with a second pipeline, and the second pipeline is used for being communicated with functional components in the containment.
6. The water tank apparatus of claim 5, wherein the first water tank further comprises a first heat exchange cavity in communication with the first receiving cavity, the second receiving cavity, and the third receiving cavity, respectively, a first heat exchanger being disposed within the first heat exchange cavity.
7. The water tank apparatus of claim 5, wherein the second water tank further comprises a second heat exchange cavity in communication with the fourth receiving cavity, the fifth receiving cavity, and the sixth receiving cavity, respectively, a second heat exchanger being disposed within the second heat exchange cavity.
8. The water tank apparatus of claim 1 wherein the buttress is provided with a receiving groove, and the connecting water pipe is embedded in the receiving groove.
9. The water tank arrangement according to any one of claims 1 to 8, wherein each of the at least two water tanks is of concrete construction.
10. A containment assembly comprising a containment and a tank arrangement as claimed in any one of claims 1 to 9.

Description

Water tank device and containment assembly Technical Field The embodiment of the application relates to the technical field of nuclear power, in particular to a water tank device and a containment assembly. Background With the development of modern nuclear power technology, the passive technology requirements of the nuclear power station are becoming wider and wider. The inner containment is a prestressed concrete structure, the inner side of the inner containment is provided with a sealed steel lining which plays a role in preventing radioactive substances from leaking, and meanwhile, in order to realize passive heat conduction of the inner containment of a nuclear power station, a water tank is hung on the top of a shell of the outer containment in an externally hung manner so as to realize heat conduction of the inner containment. With the deep research of commercial aircraft impact prestressed reinforced concrete and commercial aircraft impact common reinforced concrete, the single-layer prestressed concrete structure can meet the functional requirements of the original double-layer containment without reducing the safety. The adoption of the single-layer prestressed concrete containment plug-in concrete water tank to replace the original double-layer containment plug-in water tank can obviously improve the economical efficiency and the construction convenience. Disclosure of Invention The embodiment of the application provides a water tank device and a containment assembly, which are used for solving the problem of how to externally attach a concrete structure water tank to a double-layer containment optimized to be a single-layer prestressed concrete containment. To solve the above problems, the present application is achieved as follows: In a first aspect, the embodiment of the application provides a water tank device, which is applied to a containment vessel of a nuclear power station, wherein the containment vessel is of a prestressed concrete structure, the containment vessel is of a single-layer containment vessel, a buttress is arranged on the outer surface of the containment vessel, and the water tank device comprises at least two water tanks, at least one end of each water tank in the at least two water tanks is abutted against the buttress, the at least two water tanks are connected through a connecting water pipe, and the connecting water pipe is arranged opposite to the buttress. As an alternative embodiment, the buttress includes a first buttress and a second buttress, the connecting water pipe includes a first water pipe and a second water pipe, the at least two water tanks include a first water tank and a second water tank, a first end of the first water tank is abutted with a first surface of the first buttress, a second end of the first water tank is abutted with a first surface of the second buttress, a first end of the second water tank is abutted with a second surface of the first buttress, a second end of the second water tank is abutted with a second surface of the second buttress, the first end of the first water tank is communicated with the first end of the second water tank through the first water pipe, and the second end of the first water tank is communicated with the second end of the second water tank through the second water pipe. As an alternative implementation mode, the first end of the first water tank is communicated with the first water pipe through a first control valve, the first end of the second water tank is communicated with the first water pipe through a second control valve, the second end of the first water tank is communicated with the second water pipe through a third control valve, and the second end of the second water tank is communicated with the second water pipe through a fourth control valve. As an optional implementation manner, the first water tank and the second water tank each comprise at least three accommodating cavities which are arranged in a stacked manner, and the accommodating cavities included in the first water tank are communicated with the accommodating cavities included in the second water tank in a one-to-one correspondence manner. As an optional implementation manner, the first water tank comprises a first accommodating cavity, a second accommodating cavity and a third accommodating cavity which are sequentially stacked, and the second water tank comprises a fourth accommodating cavity, a fifth accommodating cavity and a sixth accommodating cavity which are sequentially stacked; The first end of the first accommodating cavity is communicated with the first end of the fourth accommodating cavity through the first water pipe, and the second end of the first accommodating cavity is communicated with the second end of the fourth accommodating cavity through the second water pipe; The second accommodating cavity and the fifth accommodating cavity are internally provided with a first pipeline, the third accommodating cavity and the sixt